# Problem: Two compounds, HA &amp; HB have the same K a value. If a solution is prepared containing 0.5  mole of HA and 0.5 of NaB which of the following is True? A) The solution pH = pKa but it has no Buffer Capacity B) The solution is not a Buffer because there is no conjugate base of A or conjugate acid of B-. C) This solution is a good Buffer because the [weak base] = [weak acid] D) The pH = pKb for the B- E)  It is not possible to determine if this is a good buffer or not.

###### FREE Expert Solution
88% (447 ratings)
###### Problem Details

Two compounds, HA & HB have the same K a value. If a solution is prepared containing 0.5  mole of HA and 0.5 of NaB which of the following is True?

A) The solution pH = pKa but it has no Buffer Capacity

B) The solution is not a Buffer because there is no conjugate base of A or conjugate acid of B-.

C) This solution is a good Buffer because the [weak base] = [weak acid]

D) The pH = pKb for the B-

E)  It is not possible to determine if this is a good buffer or not.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Buffer concept. You can view video lessons to learn Buffer. Or if you need more Buffer practice, you can also practice Buffer practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofTwo compounds, HA & HB have the same K a value. If a sol...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 2 minutes and 8 seconds to solve this problem. You can follow their steps in the video explanation above.